(1) Connecting element for coupling a dentist&#39;s drill and hoses with cooling water and compressed air as well as (2) and (3) accessories therefor



FIG. 1 shows a connecting element for coupling a dentist's drill andhoses with cooling water and compressed air.

FIG. 2 shows an accessory therefor without light source.

FIG. 3 shows an accessory therefor with light source.

The ornamental design for (1) connecting element for coupling adentist's drill and hoses with cooling water and compressed air as wellas (2) and (3) accessories therefor, as shown and described.